We have 250 images ranging from 5 gig to 100 gig (total of 2.5 terabytes)
and that takes about 5-6 days to duplicate with de-mux. That is just using 1
drive for original tape and 1 for duplicate.
-----Original Message-----
From: Steve Mickeler [mailto:steve AT neptune.on DOT ca]
Sent: Wednesday, October 31, 2001 7:45 AM
To: Veritas BU
Subject: RE: [Veritas-bu] multiplexed duplicates & vaulting
I agree. My current vaulting process is still running since Monday @ 5am,
which brings it to 53 hours so far.
Im concerned that the vaulting software isnt working correctly because its
running 4 vault jobs at once, using 4 drives for original tapes and 4
drives for duplicate tapes.
The error logs bpvault.error.0, bpvault.error.1, bpvault.error.2 and
bpvault.error.3 show extremely different info.
bpvault.error.0 = Status = successfully duplicated 5 of 5 images
bpvault.error.1 = Status = successfully duplicated 14 of 14 images
bpvault.error.2 = still duplicating images
bpvault.error.3 = Status = successfully duplicated 45 of 45 images
dup.preview.out shows 180 images to be vaulted, which leads me to believe
that the last bpvault #2 process is going to take quite a while if its
vaulting 116 or 180 images based on the number of images vaulted in 0,1 &
3.
I think something needs to be tuned or tweaked here, cuz this cant remain
this way.
On Wed, 31 Oct 2001, Jason Ahrens wrote:
> Although I do have to agree with that, unfortunatly reality impinges it's
> way into my ideal world. We have a number of large images and to go
through
> the tapes to demux them can take up to 4 hours an image (I've timed it).
> Given the number of images I'm dealing with here sometimes on a daily
basis,
> there arn't enough hours to a day to demux my duplicates.
>
> Unless someone knows some secret trick I don't.
>
> Jason
>
> > -----Original Message-----
> > From: David A. Chapa [mailto:david AT xbpadm-commands DOT com]
> > Sent: October 30, 2001 15:29
> > To: Steve Mickeler; veritas-bu AT mailman.eng.auburn DOT edu
> > Subject: RE: [Veritas-bu] multiplexed duplicates
> >
> >
> > Here's the biggest reason I recommend having de-mux'ed
> > duplicated images.
> >
> > When a tape contains MPX images, it no longer maintains a tar
> > compatible
> > header. The only way to remedy that is by duplicating
> > (de-mux by default)
> > the images.
> >
> > This allows you, independently of an NBU server, to access
> > the data with GNU
> > tar or Veritas' modified version of GNU tar.
> >
> > I know there are a lot of opinions on whether this is a good
> > enough reason
> > to de-mux, and I shall not argue with any of you, it merely
> > becomes a matter
> > preference.
> >
> > Most of my clients like to have an industry standard (nearly standard)
> > format in their offsite vault.
> >
> > David
> > <><><><><><><><><><><><><><><><><><><><>
> > David A. Chapa
> > NetBackup Consultant
> > DataStaff, Inc.
> > http://www.consulting.datastaff.com
> > 847 413 1144
> > ---------------------------------------
> > NBU-LSERV AT datastaff DOT com - Adv. Scripting
> > http://www.xbpadm-commands.com
> >
> > -----Original Message-----
> > From: veritas-bu-admin AT mailman.eng.auburn DOT edu
> > [mailto:veritas-bu-admin AT mailman.eng.auburn DOT edu]On Behalf Of Steve
> > Mickeler
> > Sent: Tuesday, October 30, 2001 1:23 PM
> > To: veritas-bu AT mailman.eng.auburn DOT edu
> > Subject: [Veritas-bu] multiplexed duplicates
> >
> >
> >
> > We're running the vault extension on our netbackup setup and
> > I'm finding
> > that the time to duplicate is taking a long time. 36 hours to
> > duplicate
> > 180 images spanning 14 DLT 35B/70GB tapes.
> >
> > I'm assuming its taking so long to duplicate the images because its
> > de-multiplexing the images during the duplicate.
> >
> > Is there any reason why I wouldnt want to have the duplicates
> > multiplexed
> > ?
> >
> >
> >
> >
> >
> > Todays root password is brought to you by /dev/random
> >
> > .-------------------------------------.
> > | Steve Mickeler * Network Operations |
> > +-------------------------------------+
> > | Neptune Internet Services |
> > `-------------------------------------'
> >
> > 1024D/ACB58D4F = 0227 164B D680 9E13 9168 AE28 843F 57D7 ACB5 8D4F
> >
> >
> >
> > _______________________________________________
> > Veritas-bu maillist - Veritas-bu AT mailman.eng.auburn DOT edu
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> >
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> >
> _______________________________________________
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Todays root password is brought to you by /dev/random
.-------------------------------------.
| Steve Mickeler * Network Operations |
+-------------------------------------+
| Neptune Internet Services |
`-------------------------------------'
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